DS760SL Series Data Sheet

PSKILL

The +12 Vdc output only from the power supply shall be disabled if

the PSKILL input is high and V Standby will continue to be

provided, outputs may be enabled if this signal is low. The power

supply includes a pull up to disable all outputs if this signal is open.

PSKILL whall not be connectd during a hot insertion before all of

the other pins are connected.

STATUS INDICATIONS

See table below for Summary of Status signals, Ports and

Indicators. The condition column assumes 2 or more power

supplies present and ON and 5.0 Vsb shared for management

interface. On the “Fan Blocked” condition, the assumption is that

all outputs are within spec and not over temperature. This would

be considered a “warning” condition. On the “Standby” condition,

the system differentiates this state by knowing PS_ONL in

negated (requesting Standby).

ACOK# Signal Characteristics

Signal Type

Pull up to 5.0 Vsb through a

resistor in the

host system.

PWOK = High

Present

PWOK = Low

Not Present

MIN

MAX

Logic level low voltage, Isink = 4 mA

0 V

0.8 V

Logic level high voltage, Isink = 50 µA

2.0 V

4.125 V

4 mA

50 µsec

power supply. This signal shall be connected to 5.0 Vsb through a

resistor on the host system side. A logic “High” level on this signal

shall indicate AC input to the power supply is present. A Logic

“Low” on this signal shall indicate a loss of AC input to the power

supply.

Status Indicators

Condition

Status Signals

Status Register

Shutdown Register

LED’s

ACOK/H

PWOK/H

PSON

PWOK

Fan-Fail

AC-Loss

0-Temp

0-Current

Fail

AC

DC

Fail

Normal Operation

1

1

1

1

0

0

0

0

0

On

On

Off

V1 12 V Overcurrent

1

0

1

0

0

0

0

1

1

On

Off

On

AC Input Fail

0

0

1

0

0

1

0

0

1

Off

Off

Off

Fan Blocked or Running Under Speed.

O/P’s ok

1

1

1

1

0

0

0

0

0

On

On

Off

UV on V1 12 V and PS Has Latched Off

1

0

1

0

0

0

0

0

1

On

Off

On

UV on Vsb +5.0 and PS Has Turned Off

1

0

1

0

0

0

0

0

1

On

Off

On

OV on V1 12V or Vsb +5.0 & PS Has

Latched Off

1

0

1

0

0

0

0

0

1

On

Off

On

Over Temp and PS Has Turned Off

1

0

1

0

0

0

1

0

1

On

Off

On

Fan Below Shutdown Limit

1

0

1

0

1

0

0

0

1

On

Off

On

No Problems But PS is in Standby Mode

1

0

0

0

0

0

0

0

0

On

Off

Off